What can I say. These are cheap plastic "vernier calipers", you can measure stuff with them.
You might ask, "bwhaaaa what's this old school stuff I have to use my head for, how does this work?" Well take 30 seconds to read the following page and all will be revealed in the mysteries of reading a vernier scale...
These are marked to give 0.05mm precision, but realistically, +/- 0.1mm is more like it, depending on how you hold your tongue, your eyesight, how hard you are pressing, how full your bladder is, and an infinite number of other things.
With that said, +/- 0.1mm measurement tolerance is more than sufficient for a lot of purposes, for example measuring stuff for 3d printed projects and that sort of thing.
The colour is random depending on what I have in stock, I may have White, Grey. Blue, Turquoisey-Green, or Black, or somethign else entirely, if you want a specific colour, ask first to check if I have it.
Some have a metal depth gauge shaft thing, some have a plastic depth gauge shaft thing, again ask if it’s important to you.
All of our products are shipped from Christchurch, New Zealand using CourierPost for NZ, and Airmail for international.